Closure for doorways



L. A. ABRAMSON.

CLOSURE FOB DOORWAYS.

APPLlcAloN man APR. 4. |921.

Patented May16,1922.

a'sriEETsV-SHEETv 1.

L. A. ABRAMsoN. CLOSURE FOR DOORWAYS.

APPLICATION FILED APR. M1921.

Patented May 16; 1922.

3 SHEETS-SHEET 2.

L. A. ABRAMSON.

CLOSURE FOR DOORWAYS. APPLICATIONk FILED APRA, 1921.

vPatented May 16, 1922.

3 SHEETSTSHEET 3.

l u v unjust. 4 IYHHHU UMH l A1 l I '1 u v A v PATENT OFFICE.

LOUIS ALLEN ABRAM'SON, OF NEW YORK, Y.

CLOSURE FOR. IDOORlll-lYS.

Specification of Letters .Potent Potent-ed Moy l,`1922.

Application. filed April 4L, 19531. Serial etiglrl.

To all whom 'it may oon/cern.' i

Be it .known thet l', Lon'e ,ALLEN AnRAM- eoN, :i (citizen of: the`United Stetten, and e resident of the borough of lio-omo county ofBronx, city and State of New York., have iin-- vented certain new miduseful Improve ments in Closuroe for Doorwilye, oifA which thefollowing; le o e'gueeilicoftion.

While inloptohle to other purposes and conditions of use, myimprovements relate more particularly to, find :iro designed primarily',l'oi', closures` for nee in conjunction with doorwiiiye to patienterooroe or other apartments in hospitals, szinitorin and Similorinetitutione, 'Where eeclueion consistent with iizwility of ingrese undegreso, Vventilation ind Szinlitotion generell y ere (fleeideretm undeven .inore especially :For use in surgical institritienel in which itie frequently desirable to tionei'er u put-lent to :in operating roolnwithout reino'ifel ,Vroni the bed4 occupied by the Subject, und with theleent 'possible dieturha'uiee or filiiliiculty.

ln order to render temible ein-,h treneli'er of ii lood ridiflenlnitiont it ie cu Loinfiry to provide doorn/oye oi u width fullysuflicient 'to admit ol'A the paeeiiige oil the bede ordinnrily`provided llor oceupunte, euch bede being approxi]netely' four toet orso in Width, so that u dooifwfiy ot nniiinnuni Width, zuliipted Vtotliiiio jjilirpoee, ie in exooee olf' th at requisite :ior ordinarypiu-poseo oi? entrance or` exit. Hence :i door oi? ordinary construetion inode to fit :in aperture ol' this character ie unwieldy end.cumhcroonie for general use, und impractical in o utilitery sense.

My iniloiroxfeinente ere designed to eliminate the difficultiesheretoiiiore incidental to the use oil closures `itted to euch largedoor- Wziys,iind to provide Yfor all contingencies relating to the usethereof, in euch manner that my nenT :lorni and cinisti'uetion ofclosure may function es :in emergency door, as en ordinary door foringrese und egress under nornnil conditions oi' use, or :is :i menne oi?'ventilation "while screening 'the :ilnutlnent 'Troni direct olnlervtion, till ne lureirmiter fully set ,tortlnm c invention consieting' inthe epeeiho construction, :irrungeinent ond combination ol parte whorebytheee deeirnhle resulte are ottiiined in ii practicable manner.

ln the ocoonipenyiing drawings,

lug. l, in :in iooinetricel perspective shown lng e, dooriiuiy closureembodying the eeeen in t iy invention;

:i di oil or ii brochet Support e-,d With; o :Li oectloignrl detail olthe 'upper i Apport lor the nu hol door;

Allliif; horizontal eecton teken upon plinio oA line l--l llifa. 5 5

lilou o, zo on elevation oi: :i portion ol' sere n hinge oningorte;

Fig. l, with litigi'. e, is: e i; tion token upon plone o one lim-8,Fig.

sfsection tol-fen upon plone of 8;

:Section when upon plone of i, n i'thout the hf fe bracket;

. li ill, ie ii loool det-nil of 'the 'Weighteuetaining, opringdniltprovided on the n i e fr imui n dooru ln ee'ifernl 'the drawings; 'the@teill., is not i note i doorway of p iininn width For nee in enemergency, oe for ineinnce, the no 'in theretlnough oi a hed iii'hendoeiriiljnlo ior reasons i herein etotcd; lil, repreeente the emergencydoor ol the full width oll seid doorway l); M, 'the ineiliul door .'iorordinary use, and @on ointiliory ecreen door YFor nee when it is deenfihle to nniintiiln the medial door in open `position, und et theezune time prevent oliecrriition oi? the interior olE the apartment. i

The eniorii'ency door coneiete essentially of ai ironie compi-ien 'thevertical members c, o ond o connective top ineinhei.' e2. lt nioy "withii bottoni or Sill member oleo he foi-ined Y e, es; indlcziied in liliC'. l. --l ind 5, of the dronin'r although 'theeill c, niuy he dis-,.ioi ed i ith, es in Fig-e. :rnd G, in Whichl eeen :i foot lire/oliete4, ie eulze'titnted in lieu thereof for the lonf'or pivote). erinnertof the inoafizil lool lll. es elniwn in eaiid ,ll-Tige. und tif-theupper portion oi seid medial door lll', heilig' niifotolly eiipported onthe upper connectiye ineinher ol 'the emern.' the niedinl door when thedoor gency door E, as indicated in Figs. 1 and 3. In other words, theupper rear edge of the medial door M, may be formed with a pintle m, forengagement with a Julcrum mortise e, in the under side of the top membere2, of said emergency door E, as shown particularly in Fig. 3; while thelower rear edge of the medial door M, may be fulcrumed, either on thesill member e3, of the emergency door lt, as in Figs. 1 and 5, or on abracket e4, on the side member e, of said emergency door, as in Figs. 2and 6, and as hereinbe'fore intimated. In either case the medial door ispreferably,'although not necessarily, free -to swing in either directionon the emergency door E,-ex, in Figs. 1, 2, 5 and 6, representing avertical spring pivot of the automatic closure type of well knownconstruction and use in the art. In this connection it is to be notedthat by the use either of the bracket c, or of a sill @3, integral withthe emergency door E, as a means of support for the lower por-- tion ofmy medial door M, I avoid projeetions above the floor that would beobviously objectionable in case ot removal of a bedridden patientthrough the doorway.

The emergency door E, is hinged, as indicated at f, Fig. t, to one sidemember f', of the doorway frame F, a plurality of suitable hinges beingused for the purpose; or said emergency door E, may be otherwisefulcrum-mounted and supported onone side of the doorway D, by equivalentmechanical expediente if preferrecl,tlie essential teature in thisrespect being the provision oi means whereby the duplex door E, M,considered in a unitary sense, may be opened up to render the full areaoit' the doorway D, available in case of emergency.

As this duplex structure of door E, M, is necessarily heavy, and as theemergency frame or portion E, thereof is normally closed', I provide theotherwise free member c', of the.I door E, with a spring bolt Z), ofwell known general construction and operation, but which also may beutilized as indicated more particularly in Fig. 11, to relieve thehinges f, of undue or unnecessary strain,

and thereby prevent sagging ete, the bolt Z), being provided with a.latch lever whereby it may be retracted against the resistance of thelift or take up spring b, (Fig. 1l), when it is desired to swing opensaid emergency door in its entirety. In order to enable the bolt Z), tothus perform the double function of a spring bolt, and oit a. take up orlift to compensate for the aggregate weight of my composite doorwayclosure, considered as a unitary structure, and to relieve the hinges f,or undue normal strain as stated, I form my bolt '6, with an annularcollar 6X, which, when the bolt Z), s lowered, will bear against a floormortise plate p, as shown in said Fig. ll, and I also interpose saidlitt spring Zi, between said annular collar bx, and a lixed shoulder o,on the door itsell, as also illustrated in said Fig, l1, oi"- thedrawings, which spring- Zi, must be of suiiicient expansive strength andresilience to act as a counter-poise, substantially as and for the.purpose set liorth.

My so called medial door M, mounted as above stated on the emergencydoor lil, as a supporting frame, is el" course designed -for normal useas a means ot entry to, or departure from, the apartment provided withthe maximum or emergency width o'l' doorway D. Should it be desired toclose the apartment so, as to afford a patient absolute privacy andfreedom 'trom corridor noise or disturbance, my medial door M, is keptshut.

In certain contingencies, however, as where a patient is convalescent,etc., it may be dcsirable to leave the normal medial. door M, open withthe emergency door IC, locked in closed position, and ilior this reasonI provide my emergency door E, with an auxiliary screen door S,positioned and made preterably oir such height as to afford privacy fromexternal observation as of the interior ot the apartment 'from thecorridor while admitting light, air, etc., therefrom. As this auxiliaryscreen door S, is also an emergency expedient, I support it demountablyon the emergency doorl E, preferably by means ot stud posts c,positioned in concealed boxes ct', countersunk in the side member c, oi"the emergency door, as shown more particularl \v in detail in Figs. 7 tol0, oi the drawings, inclusive, which represent a single hinge mount ofthis character. In this construetion of a demountable hinge support thestud post a, is enclosed in and is integral with a box a', provided witha spring-controlled shutter a2, which automatically closes the box inthe absence or' the detachable bracket arm t, on which the spring hinget, is mounted, said spring hinge t, being of a well known commercialtype, and being attached to the f ame a, of the screen as indicatedparticlarly in Fig. 7.

From the foregoing it will be seen that, by my speciiie construction andarrangement of parts, I attain a maximum doorway closure especiallyadapted to meet all the varying requirements and exigencies incidentalto use in a hospital or similar institution, and by means which aresimple and conveniently manipulatable.

It is to be understood that by the term cemergency door7 as herein usedI mean to designate a prin'iary major elosure of the full area of theiixod maximum doorway involved; and that by the term medial door I meanto designate a normal closure for a supplementary medial doorway `theopposite direction thereto and provided within the area maj or emergencyin disclosed.

What I claim as my invention and desire to secure by Letters Patent is,

l. .A closure for doorways of the character designated, comprising amajor emergency door or maximum .fixed doorway area, said emergency doorbeing formed with a supplementary normal doorway, and a medial doorpivotally mounted on said. emergency door and adapted to function as aclosure for said supplementary normal doorway, together with anauxiliary screen door demountably supported on said major emergencydoor, and adapted to partially close said normal doorway, said medialdoor and screen door hinged to extend entirely across the door openingand to swing in opposite directions, for the purpose described.

2. In a closure for doorways oi' the character designated, thecombination oi a maj or of said primary door, substantially as hereemergency door oit' maximum iixed doorway area formed with asupplementary normal doorway, a medial door piyotally mounted on saidmajor emergency door, and means on said major emergency door for lockingthe same in closed position and counterpoising the weight thereof,together with an aux iliary screen door deniountably supported on saidmajor emergency door to swing in adapted to extend entirely across thedoor opening and to partially close said normal doorway, for the purposedescribed.

3. A closure for a sill-less doorway of the character designated,comprising a hinged major emergency door oi maximum fixed doorway area,said emergency door being formed with a sill-less normal supplementarydoorway and with a foot bracket, and a medial door piyotally mounted onand be tween said foot bracket and the upper member ot said emergencydoor and adapted to act as a closure tor said sill-less supplementarynormal doorway, together with a spring bolt on said emergency dooradapted to lock the same in closed position and to counterpoise theweight thereof and of the parts mounted thereon, and a screen door ofless height than the medial door and mounted on said major emergencydoor and adapted to swing independently of said medial door, for thepurpose described.

il. A closure for a sillless doorway of the character designated,comprising a major emergency door of maximum fined doorway area, saidemergency door being formed with a sill-less supplementary normaldoorway and with a foot bracket, a medial door pivot ally mounted on andbetween said foot bracket and the upper member of said emergency doorand adapted to act as a closure :tor said sill-less supplementary normaldoorway, an auxiliary screen door demountably supported on said majoremergency door, and hinged to swing in the opposite directionindependently thereof, and a spring bolt on said major emergency dooradapted to loch the same in position and to counterpoise the weightthereof and of the parts mounted thereon, for the purpose described.

LOUIS ALLEN ABRAMSON.

Witnesses JAS. J. JOYCE, 'Inoiims CnRIs'riANu

